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JUMO Ensures Reliable Turbidity Monitoring at a Hydropower Plant in Ecuador

CELEC EP, Ecuador’s leading electricity generation company, has successfully implemented a modern turbidity monitoring system at the Alazán hydropower plant (6.2 MW) located on the Río Mazar river.

The power plant operates in challenging climatic conditions in the Andes (water source at approx. 3,850 m altitude). After heavy rains and storms, the river water becomes highly turbid due to sediment and suspended solids. This leads to accelerated turbine wear, operational disruptions, and more frequent cleaning of sand traps.

To address this issue, a reliable continuous turbidity measurement system was installed directly in the water intake channel.

JUMO’s solution included:

The sensor is designed to withstand flow rates up to 3.44 m³/s. It is secured with chains and mounted on a submersible fitting with a cantilever beam for stable readings and protection against debris. Measurement is based on 90° scattered light principle, providing a wide range and high accuracy. Data is transmitted via Modbus RTU protocol over RS485 in a robust industrial design.

The AQUIS 500 RS transmitter is installed in a weatherproof cabinet (IP67 protection) on the bank of the channel. Real-time data is fed directly into the plant’s SCADA system.

Results:

  • Continuous real-time water quality monitoring
  • Fast response to sudden increases in turbidity
  • Optimized sand trap cleaning intervals
  • Reduced risk of turbine damage and improved overall plant reliability